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ksm123 Jul 30, 2006 6:52 PM

Is it possible to use SLR Film camera lense in Digital SLR. Thanks in advance.

TDN Jul 30, 2006 7:04 PM

Yes it is. With Pentax you're probably even at the best adress for that.
Even with really old lenses without any electronic coupling you can use the metering in your camera.
Of course things like automatic aperture, autofocus, etc are up to the lens.

If you're interested in buying older lenses I'd suggest you look for KA mount lenses. They'll give you everything except autofocus.

All AF lenses work on the digital SLR of course.


Jul 30, 2006 7:12 PM

yes, there are only 24-27,000,000 of them out there..

ksm123 Jul 30, 2006 7:32 PM

Thanks for the reply.

Jul 30, 2006 7:36 PM

altho all of them work, there are some limitations due to design.

bilybianca Jul 31, 2006 2:40 AM

Any Pentax lens will work just as it did when it was produced. KA lenses give you automatic aperture, but no autofocus, just as they did when they were new. K lenses give you manual aperture and manual focus just as when they were new and autofocus only was a dream in some engineers mind. The optical and mechanical quality of older lenses are often first class, and you find them at bargain price on ebay and sometimes in the local fleemarket.

This is true only for Pentax of course (and Sigma, Tamron etc third party lenses with Pentax fitting). Be ware of N*k*n or C*n*n, as their older lenses are not compatible!


NonEntity1 Jul 31, 2006 11:44 AM

I hope it is OK to ask a follow up question in this thread. If KA is the type of manual lens with automatic aperture (and the type to look for) and K does not, what other types are there? I think I have seen reference to K(M) and screwmount on some of the lenses I have seen on sale but these may be synomous terms for one of the types already mentioned.

Thank you,


bilybianca Jul 31, 2006 12:28 PM

K (M) probably means K (manual) if it's a Pentax fit lens. Screwmount is older, but non the less it can also be used on the Pentax DSLR's with an adaptor. But I'd recommend you to stick to the A versions if you don't have some experience with older cameras and shooting fully manual.

Edit: Yes, A or KA (same thing) is exactly what you say.

The Barbarian Jul 31, 2006 1:12 PM

It should also be noted that with a screwmount-to-Kmouint adapter, even the old screwmount Pentax lenses can be used.

I am very pleased with the results I get from my 1.8 85mm screwmount Takumar.

Everything is manual, of course.

TDN Jul 31, 2006 4:14 PM

Be aware of anything that mentions "Ricoh" though...these lenses can get stuck on your camera.

You can recognize them by the name R/-KA P/-AR or something of that fashion.


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